Machine for treating sand and similar material



Feb. 10, 1925.

V. E. MINICH MACHINE FOR TREATING SAND AND SIMILAR MATERIAL Filed Feb. 23, 1923 2' Sheets-Sheet 1 fizz/97 7 rvzef k ,Feb. 10, 1925.

V. E. MINICH MACHINE FOR TREATING SAND AND SIMILAR MATERIAL Filed Feb. 23, 1923 2 Sheets-Sheet 2 Patented Pele. 10, 1925.

STATES PATENT OFFICE.

vnann s. MINICH,

EQUIPMENT COMPANY, OF NEW YO OF NEW YORK, N. Y., ASSIGNOR TO THE AMERICAN FOUNDRY RK, N. Y., A CORPORATION OF OHIO.

MACHINE FOR TREATING SAND AND SIMILAR MATERIAL.

Application filed February 23, 1923. Serial No. 620,597.

To all whom it may concern:

Be it known that I, VERNE E. Minion, a citizen of the United States, residing at New York city, in the county of New York and State of New York, have invented a certain new and useful Improvement in Machines for Treating Sand and Similar Material, of which the following is a full, clear, conelse, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to machines for treating sand and similar material, and particularly to machines for treating sand used in foundries to prepare it for reuse.

One of the objects of the invention is to provide a simple, practical and advantageous machine of the class specified.

Another object of the invention is to provide a machine especially adapted for treat ing foundry sand for reuse.

Another object of the invention is to provide simple and improved mechanisms for treating or cutting the sand for reuse.

In the structure herein set forth for carrying out my present invention, I provide a traveling wheeled vehicle and mount upon it a bucket or similar conveyer which is arranged at the front end of the machine and in position to dig into the molding sand to be treated as the latter lies in a windrow. This bucket conveyer is arranged to elevate the sand and to discharge it at an elevated point. The machine is also provided with a movable or traveling device preferably in the form of an endless belt arranged in a more or less horizontal position underneath the end of the traveling bucket conveyer, so that sand discharged from the bucket conveyer will fall on this traveling belt. The belt is preferably provided with cutting members or devices by which the sand will be broken up, out or treated and the belt is adapted to discharge the treated sand off from its end, so that the sand will fall in a windrow ready for reuse. Suitable power enerators such as electric motors are provided to drive the bucket conveyer of the traveling belt.

In the accompanying drawings Fig. 1 is a side elevation of a sand treating machine embodying my present invention;

Fig. 2 is a plan view of the same.

Referring to the drawings I show a machine with a body frame 1 mounted on front wheels 2 and rear wheels 3. A bucket conveyer 4 having buckets 5 is mounted at the front end of the machine on sprockets 6 and T, the lower end of said bucket conveyer being near the floor surface 8, on which the wheels 2 and 3 travel, so that the buckets 5 may readily dig into and pick up the moldmg sand in a foundry as the machine is advanced. The bucket conveyer 4 is driven by link belts 9 which are driven by gear 10 in pigrn driven by gears 11 and 12 and motor A traveling belt 14 is arranged with one end substantially below the upper end of the bucket conveyer 4 so that its upper surface may receive material dumped from the buckets 5. I The belt 14 is mounted on shafts 15 and 16 driven by a belt 17 from shaft 18 driving belt 9. The belt 14 is preferably provided with a series of pins 19 pro jecting outwardly or vertically from the belt so that sand falling on the belt will be broken or cut by the pins. The sand will also be conveyed along by the belt in the direction indicated by the arrows and will be discharged from the right hand end of the belt, referring to Fig. 1, the discharge being into the air and well beyond the end of the belt so that the treated or cut sand will fall in a proper windrow ready for reuse. Shields 20 are arranged along the side of the belt to prevent sand flying off the sides of the belt.

Another electric motor 22 is arranged for driving the wheels of the vehicle, said motor conveniently having a worm and wheel connection 23 from which a belt 24 extends to a sprocket 25 on a shaft 26 which is connected by a sprocket chain 27 with sprocket 28 on one of the driving wheels 2.

Thus in operation the sand to be treated is picked up by the buckets 5 and discharged on to the traveling belt 14 by which it is cut, broken and treated, and is then discharged from the machine on to the floor so as to form a windrow, to put the sand in the best form for use.

It will be understood that changes and modifications may be made without departing from the spirit of the invention.

What I claim is:

1. A device of the class specified comprising a wheeled vehicle, a lifting mechanism and project it to a point at a distance from the machine.

3. A device of the class SPGCifiQClCODlPIlS- inga wheeled vehicle, a bucket conveyer mounted thereon and arranged to lift sand from the floor to an elevated position and -a traveling sand treating belt conveyer l0- cated'to receive sand fromsaid conveyer and provided with means for blending the sand and operative to project the same to a point at a distance from the machine.

4-. A device of the class specified comprising a wheeled vehicle, a bucket conveyer mounted thereon and arranged to lift sand from the floor to an elevated position and a traveling sand treating belt arranged to receive sand from the bucket conveyer and operative to project the same to a point at a distance from the machine, and power generating devices for driving the vehicle and operating mechanism thereof.

5. A device of the class specified comprising a wheeled vehicle, a bucket conveyer mounted thereon and arranged to lift sand from the floor to an elevated position and a traveling sand treating belt arranged to receive sand from the bucket conveyor and project the same to a point at a distance from the-machine, and power generating devices for driving the vehicle and operating mechanism thereof, there being one device for driving the vehicle and another device for driving the operating mechanism.

6. A machine of the class specified comprising a wheeled vehicle, a traveling bucket conveyer mounted at the front end thereof and arranged to take sand from the floor and lift it to an elevated position, a travel ing sand treating belt conveyor arranged in a generally horizontal position and having one end underneath the upper end of the bucket conveyer to recelve sand therefrom, said belt conveyer being operative to project sand from the rear end of the machine to a point at a distance therefrom, and an electric motor and driving connections for driving the vehicle wheels and asecond electric motor with driving c0nnec tion for driving the bucket conveyer and traveling belt.

7. A machine'of the'classspecified comprising a wheeled vehicle, a conveyer mount ed thereon and adapted to lift material from the surface on which the material travels and a sand treating belt device located to receive material from said conveyer and provided with means for treating the material delivered to it, said belt device being operative to project sand to a point at a distance from the machine.

8. A machine of the'class specified comprising a wheeled vehicle, an elevating mechanism arranged lengthwise of the machine and having its front end near the surface on which the machine travels so as to permit lifting material from said surface and a traveling sand treating belt device located under the rear end of said elevator, and extended lengthwise of the machine, said belt device being provided with means for cutting the material delivered to it and being operative to project said mate rial to a point at a distance from the machine.

9. A machine of the class specified comprising a wheeled vehicle, an elevating mechanism arranged lengthwise of the machine and having its front end near the surface on which the machine travels so as. to permit lifting material from said surface and a traveling sand treating belt device located under the rear end of said elevator, and extended lengthwise of the-machine,

said belt device being provided with means belt device being extended lengthwise of the machine and being provided with means for cutting the material delivered to it, and for discharging said material in windrows for foundry use, said means on said belt device comprising outwardly extending pins or projections.

In witness whereof, I hereunto subscribe my name this 27 day of January, A. 1).,

VERNE E. MINIGH. 

